stylus/messaging.js

86 lines
2.9 KiB
JavaScript

function notifyAllTabs(request) {
chrome.windows.getAll({populate: true}, function(windows) {
windows.forEach(function(win) {
win.tabs.forEach(function(tab) {
chrome.tabs.sendMessage(tab.id, request);
updateIcon(tab);
});
});
});
// notify all open popups
var reqPopup = shallowMerge({}, request, {method: "updatePopup", reason: request.method});
chrome.runtime.sendMessage(reqPopup);
}
function updateIcon(tab, styles) {
// while NTP is still loading only process the request for its main frame with a real url
// (but when it's loaded we should process style toggle requests from popups, for example)
if (tab.url == "chrome://newtab/" && tab.status != "complete") {
return;
}
if (styles) {
// check for not-yet-existing tabs e.g. omnibox instant search
chrome.tabs.get(tab.id, function() {
if (!chrome.runtime.lastError) {
// for 'styles' asHash:true fake the length by counting numeric ids manually
if (styles.length === undefined) {
styles.length = 0;
for (var id in styles) {
styles.length += id.match(/^\d+$/) ? 1 : 0;
}
}
stylesReceived(styles);
}
});
return;
}
getTabRealURL(tab, function(url) {
// if we have access to this, call directly. a page sending a message to itself doesn't seem to work right.
if (typeof getStyles != "undefined") {
getStyles({matchUrl: url, enabled: true}, stylesReceived);
} else {
chrome.runtime.sendMessage({method: "getStyles", matchUrl: url, enabled: true}, stylesReceived);
}
});
function stylesReceived(styles) {
var disableAll = "disableAll" in styles ? styles.disableAll : prefs.get("disableAll");
var postfix = styles.length == 0 || disableAll ? "w" : "";
chrome.browserAction.setIcon({
path: {19: "19" + postfix + ".png", 38: "38" + postfix + ".png"},
tabId: tab.id
}, function() {
// if the tab was just closed an error may occur,
// e.g. 'windowPosition' pref updated in edit.js::window.onbeforeunload
if (!chrome.runtime.lastError) {
var t = prefs.get("show-badge") && styles.length ? ("" + styles.length) : "";
chrome.browserAction.setBadgeText({text: t, tabId: tab.id});
chrome.browserAction.setBadgeBackgroundColor({color: disableAll ? "#aaa" : [0, 0, 0, 0]});
}
});
//console.log("Tab " + tab.id + " (" + tab.url + ") badge text set to '" + t + "'.");
}
}
function getActiveTab(callback) {
chrome.tabs.query({currentWindow: true, active: true}, function(tabs) {
callback(tabs[0]);
});
}
function getActiveTabRealURL(callback) {
getActiveTab(function(tab) {
getTabRealURL(tab, callback);
});
}
function getTabRealURL(tab, callback) {
if (tab.url != "chrome://newtab/") {
callback(tab.url);
} else {
chrome.webNavigation.getFrame({tabId: tab.id, frameId: 0, processId: -1}, function(frame) {
frame && callback(frame.url);
});
}
}